Pliers



Oct. 10, 19329. C, s, BUTLER 2,175,626

PLIERS Filed March 23, 1938 Umrzwmf- INVENTOR ATTORNEYS Patented Oct. 10, 1939 UNITED sTATEs PATENT OFFICE PLIERS Charles S. Butler, Mansfield, Ohio Application March 23,

2 Claims.

This invention relates to pliers and has for an object to provide a special tool for applying and removing a gasket of the type known as the gold head.

A further object is to provide a tool of this character which will be formed of a few strong simple and durable parts, which will be inexpensive to manufacture and which will not easily get out of order.

With the above and other objects in View the invention consists of certain novel details'of construction and combinations of parts hereinafter fully -described and claimed, it being understood that various modications may be resorted to within the scope of the appended claims without departing from the spirit or sacricing any of the advantages of the invention.

In the accompanying drawing forming part of this specification Figure 1 is a front elevation of the pliers constructed in accordance with the invention and showing the same applied to a gasket of the gold head type.

Figure 2 is a, longitudinal sectional view of the piiers taken on the line 2-2 oi Figure 1.

Referring now to the drawing in which like characters of reference designate similar parts in the various views, i designates a pair of handles which are pivotally connected together near their front ends by a pivot pin Il, and terminate at their front ends in hooks I2 which are adapted to engage the arched shouldered spring i3 oi a gasket I5 oi 'the gold head type, this type of gasket having a bar l5 terminating in aligned ends it which enter sockets ii formed at diametricaliy opposite points on the inner surface of the gasket.

A pair of bars I8 are slidably mounted on the pivot pin l and project beyond the jaws I2, there being slots l in the bars receiving the pivot pin II. The bars are connected together in spaced relation at the iront end by a rivet 26 which is provided with a uniformly enlarged central portion 2i to hold. the bars spaced apart. One

d of the bars is longer than the other and projects beyond the rivet while the enlarged central portion of the rivet is provided with a recess 22. The projecting end of the long bar and the recess 22 form a seat to receive the central portion of the spring I3 of the gasket substantially midway between the two hooks I2.

The opposite ends of the bars I8 are secured to a pivot pin 23 and a pair of links 24 are pivotally connected to the pivot pin 23 at one end 1938, Serial N0. 197,695

and at the opposite end are pivotally connected to the respective handles I0 by pivot pins 25.

To insert or remove the gasket I4 the center of the spring I3 is seated in the seat formed by the projecting end of the long bar I8 and the groove 22 in the rivet 20 and the hooks I2 are engaged on the spring at opposite sides of the center of the spring.

When the handles IIJ` are moved toward each other the links 24 will move the bars I8 to deform the center of the spring while simultaneously the hooks I2 will be moved toward each other to compress the spring suiiiciently to permit the should'ers 2G of the spring to pass the stop shoulders 2l of the steam head 28 or other pipe. In this position of the spring the gasket may be inserted or removed. When the gasket is inserted the handles I0 are spread apart and this movement of the handles withdraws the bars I8 longitudinally from the spring and at the same time moves the hooks I2 outwardly to permit the spring to expand and lodge the shoulders 26 against the stop shoulders 21 of the steam head 28.

From the above description it is thought that the construction and operation of the invention will be fully understood without further explanation. e

What is claimed is:

1. Pliers for applying or removing a gasket of the type having a shouldered arch spring for engaging an internal stop shoulder and seciuing the gasket in a pipe, comprising crossed handles pivotally connected together at their crossing, hooks formed on the front ends of the handles adapted to engage the spring of the gasket at opposite sides of the center of the spring, a bar slidably mounted on the pivot of the handles and having its front end projecting beyond the jaws and recessed to engage the center of the arch spring when the jaws engage the sides of the springs near the shoulders thereof, and links connecting the rear end.' of the bar to the handles and adapted to extend the bar when the handles are closed together to deform the center of the spring longitudinally while the hooks simultaneously move toward each other to deform the sides of the spring toward each other above the shoulders thereof.

2. Pliers for applying or removing a gasket of the type having a shouldered arch spring for engaging an internal stop shoulder and securing the gasket in a pipe, compris-ing crossed handles, a pivot pin connecting the handles together at their intersection near their front ends, hooks formed on the front ends of the handles adapted 10 spring, and links pvotally connected to the rear end of the link and pivotally connected to the handles and adapted to move the bar forwardly when the handles are closed together to deform the spring at the center thereof While the hooks simultaneously deform the spring at the sides thereof to contract the spring in such manner that the shoulders of the spring may pass the shoulders of the pipe.

CHARLES S. BUTLER. 

